6309-6317 Koyo Deep Groove Ball Bearings High Quality

Product Specifications

Application Suitability

Need Reliable 6309 Deep Groove Ball Bearings? Avoid Common Sourcing Pitfalls

Finding the right deep groove ball bearings for your equipment can feel like navigating a maze. Mismatched dimensions lead to installation delays, while low-quality materials result in premature wear—costing time and money. With countless brands and specifications on the market, getting the exact bearing you need without excessive lead times is a common challenge.

Engineered for Consistent Performance in Critical Applications

Our 6309 deep groove ball bearings address these pain points through ISO 9001-certified manufacturing processes and access to a comprehensive range of international brands, including Koyo. With dimensions of 45x100x25 mm, these bearings fit seamlessly into standard industrial setups, from electric motors in manufacturing lines to hydraulic pumps in construction machinery. Available with Zz, 2RS, or open seals, they adapt to both dust-prone and clean environments, backed by our ready inventory for quick fulfillment.

Optimal Performance in Radial Load Scenarios

Designed as single-row radial bearings with a 0° contact angle, the 6309 excels in applications with primarily radial loads, such as conveyor rollers and machine tool spindles. Its non-aligning design requires precise shaft alignment, making it ideal for high-speed operations where stability is critical. The bearing steel construction ensures durability under continuous use, while vibration grades Z1V1 to Z3V3 allow selection based on noise and smoothness requirements—from general industrial use to precision automation.

Key Engineering Features That Impact Longevity

The 6309’s performance hinges on critical specifications that directly affect service life. Precision ratings from P0 (standard) to P4 (high precision) control dimensional accuracy; higher grades reduce vibration in high-speed applications like centrifugal pumps. Sealing options matter too: 2RS seals provide effective grease retention in dirty environments, while open designs allow for oil lubrication in high-temperature settings. Lubrication flexibility—grease or oil—enables adaptation to operating conditions, from low-speed gearboxes to high-RPM electric motors. Each feature is tested during production, ensuring compliance with industry standards.

Why Choosing the Right Bearing Lowers Total Costs

Selecting a substandard 6309 bearing might save upfront, but hidden costs add up quickly. Bearings with inadequate precision cause excessive shaft wear, leading to costly equipment overhauls. Poor material quality results in early fatigue, increasing downtime for replacements. In contrast, our bearings undergo rigorous testing—including hardness checks and dimensional verification—to meet P0-P4 standards, reducing the risk of unexpected failures. By focusing on reliability, we help minimize maintenance expenses and extend equipment lifespan, delivering better long-term value than cheaper alternatives.

Quality You Can Rely On

Packaging & Shipping

• Packaged in cartons with pallet options for bulk orders
• Ready stock available for immediate dispatch
• Flexible shipping via courier, air, or sea freight
• Low minimum order quantities to support small and large projects

Get Your 6309 Bearing Quote Today

Whether you need a single 6309 bearing or a bulk order, we can provide pricing and availability quickly. Share your required seal type, precision grade, and quantity, and our team will confirm stock and delivery timelines. With our broad brand coverage and technical expertise, we ensure you get the right bearing for your application—no guesswork, no delays.

Frequently Asked Questions